The most common disease affecting travellers to South-East Asia is diarrhoea. It is most commonly acquired by consuming contaminated food or water. It is important to take precautions to prevent this disease. Before leaving Australia get a Typhoid vaccine and once at your destination drink clean water (bottled or carbonated fizzy drinks) and ensure your food is prepared hygienically. Remember: Boil it, cook it, peel it or forget it. Wash your hands with soap often. Do not forget the non-medical ways to avoid malaria; if a mosquito does not bite you then you won’t get malaria.
Recommended vaccinations for South- East Asia include: Hepatitis A & B, Typhoid, Polio, ADT and Malaria prophylaxis.